cs16-dm-server: CS 1.6 deathmatch server in Docker

One-command setup (SteamCMD + pinned, checksum-verified ReHLDS / ReGameDLL /
Metamod-R / AMXX / ReAPI / ReUnion / CSDM-ReAPI / YaPB / GunGame), .env
settings, ./cs menu (map, DM/GunGame mode, bots, kill counter, restart,
update), own plugins (extras, rtv, mode switch), all-time kill counter,
watchdog + nightly backup, docs for admins and players.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

defaults/custom.cfg

@@ -0,0 +1,10 @@
+// Your own server settings. Runs after server.cfg at every map change and is never
+// overwritten by ./setup.sh. Examples (remove the // to use one):
+//
+// mp_timelimit 30          // minutes per map
+// sv_alltalk 0             // voice chat only with your team
+// esef_kill_hp 10          // HP gained per kill (0 = off)
+// esef_kill_hp_hs 20       // HP gained per headshot kill
+// esef_damage 1            // damage numbers (0 = off)
+// esef_sounds 1            // killstreak / announcer sounds (0 = off)
+// sv_downloadurl "http://example.com/cstrike/"   // fast map/sound downloads from a web server

defaults/mapcycle.txt

@@ -0,0 +1,11 @@
+de_dust2
+de_inferno
+de_nuke
+de_train
+cs_office
+de_aztec
+de_dust
+cs_italy
+de_cbble
+de_prodigy
+cs_assault